High power all-fibered femtosecond master oscillator power amplifier at 1.56 μm

Dmitry Gaponov (1) , V. L. Kotov (2) , M.E. Likhachev (2) , Mikhail M. Bubnov (2) , Amélie Cabasse (3) , Jean-Louis Oudar (4) , Sébastien Février (1) , D. S. Lipatov (5) , N. N. Vechkanov (5) , Aleksei N. Guryanov (5) , Gilles Martel (3)

1 XLIM-PHOT - Photonique Fibre et Sources Cohérentes
2 FORC - Fiber Optics Research Center of the Russian Academy of Sciences
3 CORIA - Complexe de recherche interprofessionnel en aérothermochimie
4 LPN - Laboratoire de photonique et de nanostructures
5 Institute of Chemistry of High Purity Substances of RAS

Direct amplification of output from chirped pulse oscillator (CPO) to 3.3 W of average power (pulse energy of 118 nJ in 20 ps pulse duration before compression) was achieved in a properly designed cladding pumped large mode area Er-doped fiber. Various configurations of CPO cavity with different FWHM of output spectrum and pulse duration were investigated. Fourier limit compression with 480 fs pulse duration and 32 kW peak power has been obtained for pulses with 14.8 nm FWHM spectrum. Subsequent nonlinear compression in a standard SMF-28 fiber yielded pulses as short as 145 fs.

Mots clés: Fiber optics amplifiers and oscillators; Lasers; fiber; Mode-locked lasers

Domaines: Physique [physics]; Physique [physics]; Optique [physics.optics]

Dmitry Gaponov, V. L. Kotov, M.E. Likhachev, Mikhail M. Bubnov, Amélie Cabasse, et al.. High power all-fibered femtosecond master oscillator power amplifier at 1.56 μm. Optics Letters, 2012, 37 (15), pp.3186. ⟨10.1364/OL.37.003186⟩. ⟨hal-00925346⟩